A silo is a storage container for bulk material, often grains such as corn or wheat. The most commonly noticed form is one or more connected round towers. Silos are landmarks which lend themselves to navigating. Most silos are easy to discern from other structures by the layperson.

Note: there was never a formal vote on this tag, but it has been de facto approved through general use.

Not to be confused with military bunkers or silos which should be tagged with military=bunker.